Lock-hinge



(No Model.)

T. CORSOADEN.

LOCK HINGE.

No. 451,969. Patented May 12,1891.

IIII

[9 IIIIIIWIIIIIIIIIIIIIIIIIII 1469725525. //7 Men/5r,

I 9 %n 4 azd4am Tn: mums PiYERS cu. wow-mum, wnsmua'rou, n. c,

UNITED STATES FFIC THOMAS CORSCADEN, OF NEIV BRITAIN, CONNECTICUT.

LOCK-HINGE.

SPECIFICATION forming part of Letters Patent No. 451,969, dated May 12,1891.

Application filed August 11, 1890. Serial No. 361,616. (No model.)

To all whom it may concern.-

Be it known that I, THOMAS CORSCADEN, a citizen of the United States,residing at New Britain, in the county of Hartford and State ofConnecticut, have invented certain new and useful Improvements in Blindor Shutter Hinges, of which the following is a specification.

My invention relates to improvements in blind or shutter hinges of theclass which look the blind or shutter open by means of gravity; and theobjects of my invention are simplicity and economy of construction andefliciency in use.

In the accompanying drawings, Figure 1 is a front elevation of the lowerhinge, the same being in the position it will have when the blind orshutter is closed. Fig. 2 is a side elevation of the same. Fig. 3 is aplan view; Fig. 4, a reverse plan view. Fig. 5 is a reverse plan view ofthe same with the shutter open and locked. Fig. 6 is a front elevationof the upper hinge for use in connection with said lower hinge. Fig. 7is a side elevation of the same. Fig. 8 is a plan view of the same. Fig.9 is a front elevation of my lower hinge in a somewhat modified form.Fig. 10 is a plan view of the same. Fig. 11 is a side elevation of thesame as represented with the shutter open and locked, and Fig. 12 is aside elevation of the same in a closed position.

I prefer to construct the entire hinge of sheet metal, including thepintle, and it is so shown in Figs. 1 to 8, inclusive.

A designates that leaf of the lower hinge which is designed to besecured to the house, and B the companion leaf, which is designed to besecured to the blind or shutter. The leaf A has an upright portionprovided with ordinary screw-holes for resting flatly against the house.Its lower end is bent outwardly to form a horizontal arm having adisk-like outer edge 14, and a pintle-hole which is concentric with saidouter edge. The pintle-hole is slotted on its left-hand side, as at 15,and the arm, with its disklike edge, is slotted at the right-hand side,as at 16, diametrically opposite the slot 15. The companion leaf B isprovided at the lower end of its upright portion with anoutwardly-turned. wing 17 provided with 2. depending flange divided intotwo membersnan1ely, the pintle 18 for fitting the pintle-hole, and abearing-lug 19 for bearing against the outer edge of the disk-likeportion 14. The weight of the blind is to be borne by the upper hinge.hen the blind is closed, the parts will be in the position shown inFigs. 1 to 4, inclusive. Upon opening the hinge or shutter thepintle-edges bear upon the edges of the pintle-hole while thebearing-lug l9 bears upon the disk-like edge 14, so as to center thehinge firmly. hen

the blind is fully open, the bearing-lug 19 and pintle 18 have theiredges presented to the slots 16 and 15, into which they slip by thegravity of the blind, as shown in Fig. 5, thereby locking the blindfirmly in place as soon as the hinges are fully open. The disklike edge14 and bearing-lug 19 give thehinge a firm bearing and prevent rattlingor Working off the proper center when the hinge is being opened.

The top hinge, Figs. 6, 7, and 8, is of the same general construction,in which C represents the leaf for being secured to the house, and D theleaf forbeing secured to the blind or shutter. The leaf C is alsoprovided with a disk-shaped horizontal arm 14, having a pintle-hole;butinstead of the slots 16 and it has a slot 20 at its outer edge on thefront side. The companion leaf D is provided with a horizontal arm 17,with a depending flange, the inner end of which forms the pintle 18, andthe outer end of which is in the form of a bearing-lug 19 forbearingagainstthe outer edge of the disk-shaped arm. This bearinglug isalso provided with a shoulder 21 at its inner edge which takes under theedge of the disk-like arm 14, and prevents the hinge-leaf D from beinglifted out of its companion-leaf to disconnect its p'intle, except-ingwhen the shoulder 21 is brought into a position that coincides with theslot 20, and this slot is so located that the hinge W ill be half-wayopened when the shoulder and slot register. By this construction Iprevent the shutter from being lifted off its hinges when the hinge isfully opened or fully closed in case a person accustomedto unlockingblind-hinges by lifting the shutter should attempt to so operate thishinge.

In Figs. 9 to 12, inclusive, I employ the same feature of an arm with adisk-like edge 14 concentric with the pintle; but instead of asheet-metal pintlc I secure a separatelyformed pintle 22 in said arm.'lhisarin with the disk-like edge is on the hinge-leaf E, which isdesigned to be secured to the house, and I provide the edge of said armwith a notch 16, as in the construction first described. The companionleaf F is provided with a horizontal arm 23, the inner corner of whichis slotted to hook over the pintle 22, as shown most clearly in Figs. 10and 11. At the opposite corner of said flange is a bearing-lug 19 forhearing on the outer edge of the disk to center the blind and forengaging the slot 16, as in the construction first described. Theslotted wing 23, which receives the pintle permits the bearing-lug toengage the slot 16 at the proper point, While at all other times saidbearing-lug 19 bears againstthe edge of the disk 14, and in connectionwith the pintle centers the hinge, so that there is no movementtransversely to the pintle except when the blind is fully open.

Instead of making provision against lifting the hinges off the pintle inthe upper hinge, I have provided the end of the pintle 22 with ashoulder 24 for the same purpose, said shoulder being engaged by theslotted por tion of the wing 23 in any attempt to lift the shutter.

I am aware that, broadly considered, it is not new to lock the blindunder the force of gravity by means of a movement of one-half l of thelower hinge transversely to its pin tle.

I claim as my invention- 1. The herein-described sheet-metal hinge,consisting of a pair of leaves, one of which is provided with ahorizontal disk-shaped arm, a pintle-hole, and slots and 16, and theother of Which is provided With a horizontal arm having a dependingflange forming the pintle at its inner end for engaging the pintle-holeand its slot, and a bearing-lug at the outer end of said flange forengaging the outer edge of said disk-like arm and"slot 16, substantiallyas described, and for the purpose specified.

2. The herein-described hinge, consisting of a leaf having a horizontalarm with a disklike edge, slotted as at 16, a companion leaf having abearing-lug 19 for bearing against said disk-like edge in opening thehinge and engaging said slot for locking thehinge when opened, and apintle by which said leaves are connected, substantially as described,and for the purpose specified.

3. The herein-described sheet-metal hinge having a horizontal armprojecting from the upright portion of the leaf and provided with apintle-hole, and a companion leaf having a flat pintle extendeddownwardly from its front portion into said pintle-hole, substantiallyas described, and for the purpose specified.

THOMAS CORSOADEN.

Witnesses:

J AMES SHEPARD, JOHN EDWARDS, Jr.

